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National News Briefs; Alzheimer's Vaccine Test

Preliminary results from the first human study of an experimental Alzheimer's vaccine suggest the compound is safe, a pharmaceutical company said today. Scientists said it was too soon to tell if the vaccine, by Elan Pharmaceuticals, would do any good. The company, a unit of the Elan Corporation, said the vaccine could ward off brain-clogging plaques.

In the first results from safety trials of the vaccine, none of 24 subjects with early Alzheimer's suffered side effects, the company said.